I don't think openstack itself can meet full zero downtime requirements. But if it can, then I also think none of the deployment tools try and support that use case either.
Thanks, Kevin ________________________________ From: Amit Kumar [ebiib...@gmail.com] Sent: Friday, May 18, 2018 3:46 AM To: OpenStack Operators; Openstack Subject: [Openstack-operators] [OpenStack-Operators][OpenStack] Regarding production grade OpenStack deployment Hi All, We want to deploy our private cloud using OpenStack as highly available (zero downtime (ZDT) - in normal course of action and during upgrades as well) production grade environment. We came across following tools. * We thought of using Kolla-Kubernetes as deployment tool, but we got feedback from Kolla IRC channel that this project is being retired. Moreover, we couldn't find latest documents having multi-node deployment steps and, High Availability support was also not mentioned at all anywhere in the documentation. * Another option to have Kubernetes based deployment is to use OpenStack-Helm, but it seems the OSH community has not made OSH 1.0 officially available yet. * Last option, is to use Kolla-Ansible, although it is not a Kubernetes deployment, but seems to have good community support around it. Also, its documentation talks a little about production grade deployment, probably it is being used in production grade environments. If you folks have used any of these tools for deploying OpenStack to fulfill these requirements: HA and ZDT, then please provide your inputs specifically about HA and ZDT support of the deployment tool, based on your experience. And please share if you have any reference links that you have used for achieving HA and ZDT for the respective tools. Lastly, if you think we should think that we have missed another more viable and stable options of deployment tools which can serve our requirement: HA and ZDT, then please do suggest the same. Regards, Amit
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